Nut or bolt holding device.



R; DAVIS.

NUT 0R BOLT HOLDING DEVICE.

APPLICATION FILED JUNE 6. 1916..

Patented J an. 23, 1917.

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RAY DAVIS, Gill LEHIGH, IOWA.

NUT OR BOLT HOLDING DEVICE.

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Specification of Letters Patent.

Patented Jan. 23, 1917.

Application filed June 6, 1916. Serial No. 162,054.

To all whom it may concern Be it known that I, RAY DAVIS, a citizen of the United States, residing at Lehigh, in the county of Webster and State of Iowa, have invented new and useful Improvements in Nut or Bolt Holding Devices, of which the following is a specification.

This invention relates to means for engaging the head of a bolt or nut to permit oi the operation of a suitable instrument, such as a wrench to disconnect the nut and bolt.

The device is primarily adapted for use upon the crank and transmission cases of automobiles. These cases, as is well known, are constructed in two sections each having its edge provided with a flange, one of the flanges being seated upon the other and each of said flanges being provided with openings through which are passed bolts and nuts threaded upon the bolts. To remove the sections of the case it is necessary that a wrench or similar gripping means be employed to engage with the head of the bolt or with the nut, while a second wrench is employed for engaging with the nut or the head of the bolt not engaged by the said first mentioned member. Generally two wrenches are employed for unscrewing the nuts and bolts and such arrangement requires the constant adjustment of the wrenches as well as the employment of both of the hands of the operator, one upon each of the wrenches. This method not only requires a great amount of time in the adjustment of the wrenches, but a material amount of labor upon the part of the operator, as both of his hands are occupied.

It may therefore be considered the primary object of the present invention to produce a simple, cheap and thoroughly effective tool which may be readily applied to, say, the nut member and to automatically lock therewith, the construction being such as to permit of the device contacting with the side of the case to prevent the rotation of the said device, while a machine or socket wrench is employed upon the head of the bolt for separating the same from the nut and from the flanges of the case.

' In the accompanying drawing I have illustrated a simple and satisfactory embodiment of my improvement as reduced to practice, and in the said drawing: Figure 1 is a view illustrating the application of my improvement, Fig. 2 is a greatly enlarged detail perspective view of the improvement, Fig. 3 is an enlarged end elevation illustratmg the manner in which the improvement grips the head of the bolt or a nut, and Fig. 4 is a sectional view approximately on the line Ct(t of Fig. 3.

In the drawing, a crank and transmission case of an automobile is illustrated and is indicated by the numeral 1. These cases may be made integral but each of the same comprises two members having their edges flanged and through these flanges are passed the headed bolts which are provided with the securing nuts.

1 For the sake of convenience I will de scribe the improvement as engaging with one of the nuts, it being understood that the nut for the bolt head is engaged by a suitable socket or machine wrench to unscrew the bolt from the nut and to permit of the separation of the parts of the case.

The improvement is broadly designated by the character A and comprises a socket member 2 having a centrally arranged longitudinally extending shank or handle 3. The bore of the socket 2 is separated to snugly engage the nut and the said socket, at its end, is provided with an outwardly projecting lug 3 and has its side diametrically opposite the lug 3 provided with a longitudinally extending slot and the said side, at the edges of the said slot, but at a suitable distance below the mouth of the socket 2, is formed with ears 4l4. Pivotally connected, as at 5, between the ears l is the jaw or head of a gripping member 6. The gripping member includes a shank S which is disposed in a line with the handle 3 of the socket member 2 and which is normally forced away from the handle 3 through the medium of a spring 9 which is interposed between the shank 3 and the shank 8 of the gripping member. The head 6 is provided with a laterally extending stud 10 which is adapted to contact with one of the sides of the socket 2 to limit the inward movement of the head 6 to within the said socket. The head 6 is, of course, adapted to have its engaging face or edge projected through the slot in the socket and enter the bore of the said socket, and this engaging edge or face of the said head is formed with a V-shaped groove 11, the walls of which are disposed to aline'with two of the oppositely inclined surfaces upon the walls of the bore of the socket so that the V-shaped groove 11 of the head will receive one of the corners of the nut.

The spring 9 will at all times exert sufhcient pressure between the handle 3 and the shank 8 of the gripping member to force the head thereof into engagement with the nut so that when the device is once applied to the nut it need not again be handled until the bolt is separated from the nut when the shank 8 is forced toward the handle 3 to bring the engaging face or edge of the head out of the bore of the socket to permit of the removal of the nut from the said socket.

it will be further noted that the lug 3 as well as the ears 4:, and, as a matter of fact, the portion of the head 6 of the engaging member projecting beyond the said ears will form contacting members to engage with the sides of the casing to prevent the rotation of a nut when the head of the bolt is engaged by a wrench and turned to partly rotate the nut to bring the improved device into such contact With the side of the casing.

The simplicity of the device and the advantages thereof will, it is thought, be apparent to those skilled in the art to which such invention appertains without further detailed description.

Having thus described the invention, what I claim is:

1. In a device for the purpose set forth, a shank having one of its ends formed with a socket, said socket having one of its sides slotted and provided with ears to the opposite sides of the said slot, a gripping member including a head which is pivotally secured between the ears and which is adapted to have one of its ends enter the socket, spring means between the shank and said gripping member for forcing the said head to within the socket, and means for limiting the movement of the head in the direction of the socket.

2. In a device for the purpose set forth, a member including a straight shank having its end formed with an enlarged socket. said socket, at the mouth thereof having a laterally extending lug, said socket, opposite the lug having a longitudinal slot, ears upon the socket member to the opposite sides of the slot, a gripping member including a head and a handle, said head being pivoted between the ears, a laterally arranged stud upon the head to contact with the socket to limit the movement of the head through the slot of the socket, a spring exerting a pressure between the handle and the shank, and the engaging face of the head having a V- shaped depression.

In testimony whereof I allix my signature.

RAY DAVIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents, Washington, D. C. 

